66 lines
2.0 KiB
Awk
66 lines
2.0 KiB
Awk
function strip_markdown(s) {
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gsub(/<[^>]+>/, "", s)
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gsub(/[*_`~]/, "", s)
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gsub(/[\[\]]/, "", s)
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gsub(/\([^\)]*\)/, "", s)
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sub(/^[[:space:]]*/, "", s)
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sub(/[[:space:]]*$/, "", s)
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return s
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}
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BEGIN {
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has_prev = 0
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in_pre = 0
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}
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{
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if ($0 ~ /^<pre><code>/) {
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in_pre = 1
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if (has_prev && prev != "") { print prev; has_prev = 0 }
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print
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next
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}
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if (in_pre) {
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if ($0 ~ /<\/code><\/pre>/) in_pre = 0
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print
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next
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}
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if ($0 ~ /^=+$/ && has_prev && prev != "" && prev !~ /^<[a-z]/) {
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print "<h1 id=\"" strip_markdown(prev) "\">" prev "</h1>"
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has_prev = 0
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} else if ($0 ~ /^-+$/ && has_prev && prev != "" && prev !~ /^<[a-z]/) {
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print "<h2 id=\"" strip_markdown(prev) "\">" prev "</h2>"
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has_prev = 0
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} else {
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if (has_prev) {
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line = prev
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if (line ~ /^# /) {
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sub(/^# /, "", line); print "<h1 id=\"" strip_markdown(line) "\">" line "</h1>"
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} else if (line ~ /^## /) {
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sub(/^## /, "", line); print "<h2 id=\"" strip_markdown(line) "\">" line "</h2>"
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} else if (line ~ /^### /) {
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sub(/^### /, "", line); print "<h3 id=\"" strip_markdown(line) "\">" line "</h3>"
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} else if (line ~ /^#### /) {
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sub(/^#### /, "", line); print "<h4 id=\"" strip_markdown(line) "\">" line "</h4>"
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} else if (line ~ /^##### /) {
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sub(/^##### /, "", line); print "<h5 id=\"" strip_markdown(line) "\">" line "</h5>"
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} else if (line ~ /^###### /) {
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sub(/^###### /, "", line); print "<h6 id=\"" strip_markdown(line) "\">" line "</h6>"
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} else {
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print prev
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}
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}
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prev = $0
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has_prev = 1
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}
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}
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END {
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if (has_prev) {
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line = prev
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if (line ~ /^# /) {
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sub(/^# /, "", line); print "<h1 id=\"" strip_markdown(line) "\">" line "</h1>"
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} else {
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print prev
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}
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}
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}
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